For running in mud, I would definitely pick the bogger, IF you have the motor and/or gearing to spin them easily. Behind the bogger, I would definitely pick the TSL. In fact when I used to mud race, I ran boggers on the rear and TSL's on the front.
I have no experience with Hawgs or Iroks. But from what I have seen of other trucks running them, they didn't really impress me all that much. Based on what I have seen of the Hawgs, I would rather get some sort of swamper (TSL, SX, or bogger), but then I don't drive the jeep on the street. For me, it's not worth taking a chance with the money hawgs cost to not be happy with them, I have ran all the types of swampers previously listed, and have been very happy with the performance.